D1 Mini
Issue: iSpindel has been flashed with the firmware and everything appears to have completed successfully. However, the iSpindel doesn’t show up as a wifi network while in configuration mode and therefore the access point is unavailable.
Possible Reasons: There have been reports that D1 minis with squared-off top corners are bad and will not work. The two units below were bought from the same vendor at the same time. One good unit, one bad one.
Solution 1: Update firmware. This issue may be caused by the firmware and the configuration file. I’m not sure why one board works and the other does not, but there are reports that updated firmware can resolve the issue.
Solution 2: Try de-soldering the D1 mini and replacing it.
Power Related
Issue: During charging LEDs are both on solid, or both LEDs are blinking. TP4056 chip is fried.
Possible Reasons: Your D1 mini is installed upside down.
Solutions: Unknown how much damage was done. Solution pending.
Issue: Smoke when iSpindel is switched on. FS8205A chip is fried.
Possible Reasons: You battery was put in upside down.
Solutions: Unknown how much damage was done. Solution pending.
Temp Probe
Issue: Can’t get into the access point. You are getting serial monitor OW errors. Messages like this:
ERROR: cannot find a OneWire Temperature Sensor!
Acc Test Connection ERROR!Solution: The temp probe and gyroscope share the same power connection. Installing the temp probe backwards will fry the temp probe and possibly the gyroscope as well. Try replacing the temp probe first and if that doesn’t work replace the gyroscope.
Fire
Issue: iSpindel caught fire.
Possible Reasons: The D1 mini was plugged in via its USB port, the iSpindel was turned on, the battery was still in the iSpindel, and the diode was never removed from the D1 mini. This applies overvoltage to the battery and can damage it causing a fire.
Solution: Be sure to remove the diode from you iSpindels.
